Proxmark3 community

thegreyspot

Member

Registered: 2012-05-21

Posts: 2

Noob Questions with Mifare Ultralight

Hi All,

Currently I have a ProxmarkIII, high frequency antenna, and Mifare Ultralight 64 bytes NFC tags.
To be exact:

proxmark3> hf 14a reader
ATQA : 44 00          
 UID : 04 bb bd 92 49 21 80 00 e8 99 ec a8           
 SAK : 00 [2]          
 SAK : NXP MIFARE Ultralight | Ultralight C          
proprietary non-iso14443a card found, RATS not supported  

1) How do I find the key of my tag? When I run the "hf mf mifare" all I get  is repeating "...". I have let it run for about 2 hours. Should I expect more?

2) Should I just go buy some Mifare Classic 1k? That seems to be what you guys all use and they dont seem expensive.

3) Why do I need a key? How is it that my galaxy nexus can read the tag? It doesnt seem to need the key.

P.S. The ubuntu manual fails to mention the step about running "sudo make". Seems kinda important haha. Also in step one of "Testing the Proxmark" in the same document it says “sudo ./client/proxmark3.exe” which obviously should say "sudo ./client/proxmark3"

Thanks for the help!

Mike

edo1

Contributor

Registered: 2012-05-02

Posts: 18

Re: Noob Questions with Mifare Ultralight

AFAIK you don't need any key for this card.

PS: sorry, I'm noob too and can make a mistake

Last edited by edo1 (2012-05-23 09:53:42)

thegreyspot

Member

Registered: 2012-05-21

Posts: 2

Re: Noob Questions with Mifare Ultralight

Well when I try to read from the card I get a "Auth ERR"

So it seems like I need a key

edo1

Contributor

Registered: 2012-05-02

Posts: 18

Re: Noob Questions with Mifare Ultralight

AFAIK you don't need any key for Ultralight card.
may be it is Ultralight C or another card?

merlok

Contributor

Registered: 2011-05-16

Posts: 132

Re: Noob Questions with Mifare Ultralight

you should can read start area of ultralight. UltralightC also should allow you to read this area.

http://www.nxp.com/products/identification_and_security/smart_card_ics/mifare_smart_card_ics/mifare_ultralight/series/MIFARE_ULTRALIGHT.html#documentation

http://www.nxp.com/products/identification_and_security/smart_card_ics/mifare_smart_card_ics/mifare_ultralight/series/MIFARE_ULTRALIGHT_C.html#documentation

tristanik

Contributor

Registered: 2014-11-25

Posts: 96

Re: Noob Questions with Mifare Ultralight

you should can read start area of ultralight. UltralightC also should allow you to read this area.

http://www.nxp.com/products/identification_and_security/smart_card_ics/mifare_smart_card_ics/mifare_ultralight/series/MIFARE_ULTRALIGHT.html#documentation

http://www.nxp.com/products/identification_and_security/smart_card_ics/mifare_smart_card_ics/mifare_ultralight/series/MIFARE_ULTRALIGHT_C.html#documentation

this lnk is broken. Do you have new link?

iceman

Administrator

Registered: 2013-04-25

Posts: 9,537

Website

Re: Noob Questions with Mifare Ultralight

I think there was some documents on the files area on this server. http://proxmark.org/files/Documents/